Binder packer arm and pitman



Jan. 2, 1934. J. HOHMANN 1,942,335

BINDER PACKER ARM AND PITMAN Filed Jan. 12, 1933 2 Sheets-Sheet l gym Jan. 2, 1934.

Filed Jan. 12 1933 2 Sheets-Sheet 2 Patented Jan. 2, 1934 UNITED STATES PATENT OFFICE BINDER PACKER ARM AND PITMAN Application January 12, 1933. Serial No. 651,413

8 Claims.

This invention relates to a packer arm and packer pitman for a binder packer, and it aims to provide a novel construction affording an adjustable bearing, efilcient lubrication, and permitting the packer arm and link to be disconnected in a minimum length of time, without disassembling the binder, and particularly to provide a connection between the packer arm and link held together by flanges and of a construction to retain lubricant, and also to provide a construction wherein the driving gears may be effectively maintained in mesh, locked against displacement.

Various additional objects and advantages will become apparent from a consideration of the description following taken in connection with accompanying drawings illustrating an operative embodiment.

In said drawings:

Figure 1 is a view in perspective illustrating my improvement in connection with binder parts,

Figure 2 is an enlarged detached view of a packer arm and link,

Figure 3 is a View of the packer arm and link taken at a right angle to Figure 2,

Figure 4 is a detail sectional view taken on the line 44 of Figure 3,

Figure 5 is a top view of the link,

Figure 6 is an enlarged longitudinal sectional View through the adjustable bearing for the packer arm,

Figure 7 is a cross sectional view taken on the line '7--7 of Figure 6,

Figure 8 is a cross sectional view taken on the line 8-8- of Figure 2,

Figure 9 is a detail perspective view of the adjustable bearing section,

Figure 10 is a longitudinal sectional View on an enlarged scale through the driving gears,

Figure 11 is a detail section taken on the line 11-11 of Figure 10, and

Figure 12 is a detail sectional view showing a modified form of abutment means.

Referring specifically to the drawings, bearing blocks at 10 journal an operating shaft 11, driven from any part of the harvester or from any suitable source of power. Shaft 11 has cranks 12 connected to packer arms or pitmen 13, through the medium of adjustable bearings as at 14 such packer arms 13 being pivotally connected as at 15, to links 16, which are suspended from an arch or frame 17 supported for instance by a pair of the bearing blocks 10.

The said bearing means at 14 afford an adjustable bearing for the packer arm. To this end, packer arm 13 has a semi-circular depression at 18 directly engageable by the crank 12 with which coacts a slidable and adjustable bearing member 19. Bearing member 19 is carried by and within a cap or housing 20 detachably secured as by means of bolts 21, to the packer arm.

A screw 22 is threaded to the housing 20 and. adapted to bear against the adjustable bearing section 19 according to the adjustment desired for the latter, and a lock nut 23 is threaded to the screw 22 and adapted to bind against the housing.

Bearing block 19 is provided with a recess at 26 which is adapted to contain lubricant supplied through an opening 27 in the housing 20. Bearing section 19 also has an opening or port 28 leading from said recess 26 to convey the lubricant to the crank, the surface of the bearing section 19 which engages the crank preferably being cut away or grooved as at 29 to more effi- 7 ciently lubricate the crank.

Another important feature of the invention concerns the pivotal connection at 15, which particularly enables the packer arm to be removed or detached in a minimum amount of time and 8 without dismantling the major portion of the structure. This connection employs a thimble 30 carried by one end of the packer arm. The link 16 has a stud 31 which is journaled in the thimble 30. The interior of the thimble 30 af- 8 fords a retaining space for lubricant which is supplied through an opening 32 through the stud 31. Coacting flanges are provided at 33 and 34, respectively integral with the packer arm 8 and the links 16, the flanges 34 fitting behind flange 9 33 and being in that relation in operative position, whereby the link and packer arm cannot accidentally separate. However, the flanges 33 and 34 are only segmental and in the event either the link or the packer arm is detached from crank 12 or arch 13, the same may be moved into a position where flanges 33 and 34 are out of alinement, and the packer arm and link may thus be detached.

Link 16 has a bearing section 35 integral therewith which is supplemented by a detachable hearing section 36, so that the link may be pivoted on the arch 1'7. Section 36 is secured to the link detachably by means of a bolt 3'7 and an interfitting lug and recess at 38 and 39, serve to maintain the sections 35 and 36 in proper relation. The lubricant may be supplied to an opening 40 in the section 35.

A drive to the shaft 11 may be effected by a counter shaft 41 driven from the harvester having a bevel gear 42 keyed thereon, and meshing with a bevel gear pinned at 43 on the shaft 11. A sleeve 44 surrounds shaft 11 and sleeve as a bearing therefor and has a socket at 45 serving as a bearing for the shaft 41. An externally screw threaded sleeve 46 surrounds the shaft 44, being pinned at 47 thereto. Threaded on sleeve 46 is an adjustable nut 48 abutting one end of sleeve or hanger 44. Nut 48 is split at a portion thereof and has a clamping bolt at 48 engaging ears 49 and 49 on' opposite sides of the split passing freely through the former and being threaded to the latter. Said bolt 48 has a flange 50 abutting ear 49. Nut 48 has a lubricant reservoir 51 and an opening 52 through which lubricant may be supplied between the shaft 11 and the bearing 44. This adjustable structure serves to effectively maintain or look the gears in mesh.

In Figure 12, a modified form of abutment means for the bearing 44 is shown which differs from Figures 10 and 11 in that a threaded sleeve 53, corresponding to sleeve 46, has an extension 54 pinned at 55 to shaft 11 corresponding to shaft 11.

It will be understood of course that the packer arm may be used without the removable bearing if desired and that the packer arm or pitman can Work with the pin up as in the old style packer arm if desired.

Various changes may be resorted to provided they fall within the spirit and scope of the invention.

What is claimed is:

1. In a grain binder, a suspended link, a shaft having a crank, a packer arm, a bearing removably securing the packer arm to the crank, an interfitting stud and socket between the link and packer arm, and flanges on the link and packer arm normally maintaining the link and packer arm detachably in engagement when the link and packer arm are operatively mounted.

2. In a grain binder, an arm and a link, one of said parts having a recess and the other having a stud iournaled therein, and overlapping flanges on the link and arm normally maintaining the link and arm in engagement.

3. In a grain binder a link member and a packer arm member, one of said members having a thimble, the other member having a stud to overlap normally to prevent disengagement of journaled in said thimble, and. flanges on the link member and packer arm member adapted to overlap normally to prevent disengagement of the stud and thimble.

4. In a grain binder a link member and a packer arm member, one of said members having a thimble, the other member having a stud journaled in said thimble, and flanges on the link member and packer arm member adapted the stud and thimble, said stud having a lubricant passage therethrough, and said flanges being integral with the link and packer arm respectively.

5. In a grain binder having bearing means including a housing, a bearing therein, said hearing having a movable positioning part provided with a recess in one face thereof to contain lubricant, the device having ports through the housing and through the bearing whereby lubricant may be supplied to the recess and from the same may pass to the lubricant part.

6. In a grain binder having an arm, a housing secured thereto, a bearing adjustably mounted in the housing, a screw operable to adjust the bearing, said bearing having a movable positioning member within the housing, said member being open at a side thereof to form a lubricant reservoir, said housing having an opening for supply of lubricant to the reservoir, and the bearing having an opening for passage of lubricant from the reservoir to the part lubricated.

7. In a grain binder, a shaft to operate a packer arm or the like, a bearing thereon provided with a socket, a shaft journaled in the socket, intermeshing gear members carried by said shafts, said bearing abutting one of said gear members, and a split nut on the first shaft abuttingthe bearing.

8. In a grain binder, a shaft to operate a packer arm or the like, a bearing thereon provided with 115 a socket, a shaft journaledin the socket, intermeshing gear members carried by said shafts, said bearing abutting one of said gear members,

a split nut on the first shaft engaging one end of the bearing, said nut having a lubricant res- 120 ervoir and opening therefrom whereby lubricant may be supplied to the bearing, and a clamping bolt to draw the nut together at the split.

JULIUS HOHMANN. 

